GPHG "AIGUILLE D'OR" GRAND PRIX: Piaget Altiplano Ultimate Concept

GPHG “AIGUILLE D’OR” GRAND PRIX: Piaget Altiplano Ultimate Concept


Piaget won the 2020 GPHG (Grand Prix d‘Horlogerie de Genève) Grand Prix with its Altiplano Ultimate Concept model.

The Altiplano Ultimate Concept was developed entirely in-house by Piaget’s dedicated Research and Innovation division, which is famous thin watches. 30 designers, 30 micro-mechanical engineers and 30 watchmakers have worked on the movement for 6 years. In this period, many of the established codes of watchmaking were re-invented.

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The Altiplano Ultimate Concept is a watch that is mere 2 mm, including a 41 mm case and sapphire crystal. 2 mm has a symbolic value; the same thickness as the iconic 9P calibre Piaget unveiled in 1957 at Baselworld. That shook the world of watchmaking, the Altiplano Ultimate Concept served as a stage for numerous Piaget innovations, including the case being part of the movement, an integrated winding crown, an ultra-thin crystal and more importantly new constructions for the barrel and the energy regulation.

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With the Altiplano Ultimate Concept, the idea was to create a watch not formed by multiple layers, but from a previously untried fusion of re-scaled components (167), combining the case and the movement as a whole. To achieve this, Piaget embarked on a journey of miniaturisation that resulted in the filing of no fewer than five patents and that led to this 2mm-thin hand-wound watch, with wheels as thin as 0.12mm and the sapphire crystal down to a mere 0.2mm.

The Altiplano Ultimate Concept, therefore, continues the Maison’s great tradition in the art of ultra-thin watchmaking.


  • The world’s thinnest mechanical watch: 2mm
  • Total case and movement fusion
  • Manual-winding movement totally integrated in the caseback
  • Circular satin-brushed back
  • Sunburst satin-brushed bridges
  • Circular or sunburst-brushed wheels
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